Automotive electrical systems
More informationAt Global Parts, we offer a wide selection of original used car parts, including automotive electrical systems for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.
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BMW G30 Fuel Pump Controller Control Unit Module FPC High 7466895
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Radio Player Mercedes W204 Audio 20 Navi CD Player Head Unit A2049069701
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VW Volkswagen Phaeton 3D Seat Control Unit ECU Front Passenger Side 3D0959759B
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Mercedes CLC CL203 Automatic Gearbox Control Unit Module ECU A0015454516
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Audi TT Mk2 8J Petrol Engine Fuel Pump Control Unit Module 3C0906093C
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Mercedes C CLC Class CL203 S203 W203 Rear SAM Tray Holder Bracket A2035452301
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BMW E60 E87 E90 E91 120d 320d 520d M47N2 ECU Kit DDE 7798180 CAS2 + Key Manual
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Volkswagen VW Golf VI Engine Starter Motor 1.6TDI 2.0 TDI Diesel 02Z911023N
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Peugeot 307 Citroen Berlingo Diesel Engine Alternator Generator 9646321880
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Audi S3 8Y Power Supply Module Comfort Control Unit ECU 5WA937086BB
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Audi A4 B9 Front Door Control Module Unit Driver's Side 8W0959593E
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Mercedes W204 Battery Fuse Box Positive Distribution Terminal A2075401550
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Mercedes-Benz M-Class ML W163 1 Cover Footwell Fuse Box Trim Right A1636801080
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Engine Wiring Mercedes W204 W212 OM651 Diesel Harness Loom Cable A6511504633
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BMW 7 Series E65 E66 Dashboard Dash Sun Solar Sensor Speaker Cable 6910381
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Audi Q7 4L On Board Onboard Supply Module Control Unit ECU 4F0907280B
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Mercedes C207 Complete Damper Adjustment Control Module ECU A2049005503
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BMW 1 Series E87 Footwell Xenon Light Control Module Lear FRMFA PL2 6956587
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STAG QBOX Basic LPG CNG 4-Cylinder Control Unit Module Injection Controller ECU
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Tailgate Trunk Mercedes X117 X156 W205 Boot Rear Control Module Unit A2389053301
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Audi A7 4G8 BCM Body Control Module Unit ECU 4H0907063DH
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MINI Cooper R50 W10 116HP Engine ECU Kit DME 7520019 + EWS3 + Key Automatic
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Mercedes W207 Seat Adjustment Motor Front Seat Actuator Unit 0390203330
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BMW 1 3 Series E81 E87 E90 E91 E92 E93 LCI Radio CD Professional 9226395
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Audi TT FY 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06L971627K
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CAS2 Module BMW E87 E90 CAS2 ECU Comfort Control Unit 61356964051 6964051
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BMW F20 F21 F30 F31 118d 318d B47 150HP Engine Control ECU DDE 8473185 Manual
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BMW X3 F25 20d N47N 184HP ECU Kit Control Unit DDE 8574091 CAS4 Key Automatic
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BMW E81 E87 LCI E90 120d 320d N47 177HP ECU KIT DDE 7811700 CAS3 Keys Automatic
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BMW 1 3 Series E87 E90 E91 N46 118i 318i 120i 320i ECU DME Control Unit 7545042
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Ford Transit Connect Radio Stereo Head Unit Control Panel BK2T18K811ED
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BMW E60 E87 E90 120d 320d 520d M47N2 ECU Engine Control Kit DDE 7801711 CAS2 Key
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Basic Navigation BMW F20 F30 F32 Mini F56 F60 Radio Sat Nav Head Unit 8791768
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Engine Wiring BMW X5 E53 3.0d M57N Loom Cable Harness Injector Module 7796819
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Mini Cooper R55 R56 IBS Negative Battery Lead Cable
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Navigation Head Unit BMW F20 F30 F31 LCI G30 Sat Nav Head Unit High 8780768
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BMW 1 2 3 4 Series F20 F21 F30 F31 F32 Rain Light Solar Sensor 6814596
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Battery Cable BMW E63 E64 Negative Minus Pole IBS 6947497
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BMW Mini Cooper S R55 R56 R57 N14 1.6 ECU Basic Control Unit DME 7584113 Manual
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ConWys AG CFC Towing Hitch Trailer Hook Module Control Unit ECU VP128655/005/B
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BMW X3 F25 B+ Distribution Box Battery Power Red Rear Control Unit 9206140
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Amplifier BMW F20 F21 LCI M Mini F56 HiFi Harman Kardon Audio Booster 8729433
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Mercedes W906 OM651 Glow Plug Pre Heat Relay A6511530879
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VW Volkswagen Sharan Front Door Left Right N/O/S Speaker Loudspeaker 7N0035454A
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Fuse Box Mercedes CLK W203 W209 Front SAM Control Unit Module ECU A2035453001
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VW Volkswagen Golf CD1 Front Door Left N/S Loom Wiring Cable Harness 5H4971161LQ
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Seat Ibiza 4 6J Skoda Fabia 2 5J Battery Wire Negative Terminal Cable 6Q0971235H
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Audi Q7 4L Quattro Audio Sound BOSE Amplifier Stereo System Module 4L0035223D
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MINI One R50 Engine W10 1.6 90HP Engine ECU Kit DME 7527610 + EWS + Keys Manual
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Mercedes Vito W901 W903 Audio Radio Head Control Unit A0048201686
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BMW E61 LCI Body Gateway Module KGM HIGH 27 D-Can LEAR 9197317
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Mercedes W203 CD Media Player Radio COMAND Multimedia Head Unit A2038707189
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Mercedes ML W164 Door Module Front Right O/S Control Unit ECU A1648200485
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Mercedes W211 ESP ABS Stability Control Unit Module ECU A2115404445
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BMW X3 E83 LCI Headlamp Control Module LCM Unit ECU 3451529
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BMW F20 F21 F30 LCI M140i 340i Alternator Generator 180A BOSCH 8614276
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Ford Transit MK6 2.4 Diesel Alternator Bracket Mount Support YC1E10K019BA
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BMW 6 Series E64 Cabrio Convertible Folding Top Roof ECU Module 6979862
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Key components of vehicle electrical systems
Original electrical parts for popular car brands
A car's electrical system is a complex system responsible for many key functions—from engine starting to lighting and on-board electronics. Modern cars are equipped with increasingly advanced electrical solutions that not only improve driving comfort but also enhance safety. At the Global Parts automotive store you will find a wide range of used car parts , such as alternators, starters, batteries, control modules and other automotive electrical systems that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini and many others.
How does a car's electrical system work?
A car's electrical system is a complex system that consists of several key components that work together to ensure the vehicle's reliable operation:
- Battery accessories – Includes clamps, cables, holders and other components necessary for battery installation and maintenance.
- Electronic control modules and controllers – They control and manage the operation of various vehicle systems, such as the engine, air conditioning and ABS.
- Alternators and generators – Responsible for generating electricity and charging the battery while the engine is running.
- Parts for alternators and generators – Including voltage regulators, brushes and bearings that ensure proper operation of the alternator.
- Starters – Key components of the starting system that enable the engine to be started.
- Starter parts – Including bendixes, rotors and solenoids necessary for the proper operation of the starter.
- Batteries – They store the electrical energy necessary to start the engine and power on-board systems.
- Wires, harnesses and connectors – They transmit energy and electrical signals between various vehicle systems.
- Fuses and fuse boxes – Protect the electrical system against overloads and short circuits.
- Relays – They control the flow of current in individual electrical circuits of the vehicle. A functioning electrical system is the basis for the reliability of your car, regardless of operating conditions.
Key technical parameters of electrical systems
Each of these components has specific technical parameters that determine its compatibility with the vehicle. For example, alternators installed in mid-range cars (e.g., Volkswagen Passat B6) typically have a capacity of 90 A to 140 A, while luxury vehicles (e.g., Mercedes S-Class) require alternators with a capacity exceeding 180 A. Starter motors vary in torque and operating voltage – the standard is 12 V, while 24 V starters are used in heavy-duty vehicles.
Why is it worth taking care of your car's electrical system?
Regular maintenance and replacement of electrical system components is key to reliability and road safety. Faulty components can lead to:
- Problems starting the engine.
- Failure of safety systems such as ABS or airbags.
- Decreased efficiency of on-board equipment, e.g. lighting or air conditioning. At the Global Parts store we offer original used car parts , which have undergone detailed quality tests, ensuring their full functionality.
Symptoms of electrical system disruptions
In practice, electrical faults manifest themselves in a variety of ways. Drivers most often notice: dimming lights when parked, difficulty starting the engine, a voltage drop on the on-board computer, or air conditioning malfunctions. The table below presents typical correlations:
| Symptom | Possible cause | Item to check |
|---|---|---|
| Difficulty starting the engine | Worn out starter or battery | Starter motor, battery |
| Dimming the lights | Inefficient alternator | Alternator, voltage regulator |
| Electric windows not working | Damaged relays or harness | Relays, wires |
How to choose the right parts for your electrical system?
When choosing parts for the electrical system, such as alternators, starters or control modules, it is worth paying attention to:
- Vehicle-specific fit – Every car make and model requires specific specifications. At Global Parts, you'll find parts that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini, and many more .
- Technical condition – All used parts we offer are thoroughly checked to ensure their reliability.
- Technical parameters – For example, alternators should have appropriate current output, adapted to the needs of your vehicle.
Compatibility and fit
The selection of electrical parts is based primarily on OEM part numbers, but matching them to specific parameters is equally important, including current, voltage, and the number of connector pins. For example, the 120A alternator used in the Audi A4 B7 differs significantly from the 150A version installed in the Audi A6 C6 . Therefore, using manufacturer catalogs or providing the VIN makes finding the right component much easier.
Why choose used electrical parts?
Purchase of used car parts This solution allows you to combine savings with quality. Why choose it?
- Lower costs – Used alternators, starters and other parts are cheaper than new ones, but offer the same high quality.
- Ecology – You support recycling and reduce waste by choosing used car parts .
- Wide range – We offer electrical parts for the most popular car brands, so you can easily find what you need.
How to take care of your car's electrical system?
To ensure your electrical system operates reliably for years, it is worth remembering a few rules:
- Regularly check the battery condition and charge level.
- Take care of your cables and connectors – corrosion or damage can lead to voltage drops and failures.
- Monitor the operation of the alternator and starter – early detection of problems will help avoid more serious breakdowns. If you have any problems, you will find the right car parts at Global Parts that will help restore your vehicle to full working order.
Step-by-step control procedures
- Measure the battery voltage with a multimeter – the resting value should be approximately 12.6 V.
- Check the charging voltage with the engine running – the correct range is 13.8–14.5 V.
- Assess the condition of the wires and terminals – lack of corrosion and a firm seat are essential.
- If in doubt, check the quiescent current consumption – it should not exceed 0.05–0.08 A.
FAQ - Frequently asked questions about electrical systems in cars
| Question | Answer |
|---|---|
| What is a car electrical system? | This is a set of components responsible for powering and controlling all electrical functions in the car – from engine starting to multimedia. |
| What is an alternator for in a car? | The alternator generates electrical current when the engine is running and charges the battery. |
| What is the difference between a starter and an alternator? | The starter motor is used solely to start the engine, while the alternator is responsible for generating energy while driving. |
| How to check if the battery is working? | Just measure its voltage – a healthy battery should have approximately 12.6 V at rest and maintain a voltage above 10 V during cranking. |
| What are the most common symptoms of car electrical failure? | Problems starting the engine, flashing warning lights, power windows not working or dimming lights. |
| Do electrical parts from one model fit another? | Sometimes yes, but the key is to match it by VIN or OEM number – this guarantees compatibility. |
| How often should you check your electrical system? | It is worth performing basic diagnostics (battery, alternator) at least once a year or before a long trip. |
Summary: Automotive electrical systems at Global Parts Automotive Store
Automotive electrical systems are the foundation of the reliability and comfort of every modern vehicle. By choosing the right parts, such as alternators, batteries, and control modules, you can ensure your car's full operational efficiency. The Global Parts automotive store invites you to browse our wide selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , or others, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .